DBCO-PEG12-carboxyfluorescein (5(6)-FAM) represents a variant of a time-honored fluorescent dye and featuring a terminal DBCO group and a hydrophilic PEG12 spacer arm. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG12 spacer arm significantly increases water solubility, membrane permability, and conjugation efficiency. Please contact us for GMP-grade inquiries.
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